On Sunday afternoon, large swaths of the so-called "dark net"—the network of web sites accessible only to people using the anonymity-enabling Tor software—went even darker than normal. The widespread blackout appears to be the result of an FBI sting, targeted at the trade of kiddie porn on the Tor Network. One…

We're fascinated by the Tor Network, an online anonymizing technology that is often referred to by the much more sexy nickname "the dark net." The dark net is a shadow internet where people can do what they please with little fear of being tracked down and identified. Activists in oppressive regimes use the dark net,…